optimized cpu_number()

1 files changed, 9 insertions, 6 deletions

diff --git a/kern/cpu_number.c b/kern/cpu_number.c
index cddbfd18..65c786a3 100644
--- a/kern/cpu_number.c
+++ b/kern/cpu_number.c
@@ -11,12 +11,15 @@ cpu_number()
 	if(ncpu == 1 | lapic == 0) return 0;
 	else{ 
 		unsigned apic_id = lapic->apic_id.r >>24;
-		int i = 0;
-		
-		while(i< ncpu && machine_slot[i].apic_id != apic_id) i++;
-		
-		if(i == ncpu) return -1;
-		else return i;
+		/*int i = 0;
+		 *
+		 *while(i< ncpu && machine_slot[i].apic_id != apic_id) i++;
+		 *
+		 *if(i == ncpu) return -1;
+		 *else return i;
+		 */
+
+		return apic2kernel[apic_id];
 
 	}
 }